Why shouldn't i use Molten Armor? If i happen to get low mana just switch to Mage Armor

No, I have no problem with molten armour.
I have so much no problem with molten armour that you shouldn't be using mage armour at all ever.
That's what your free, mana-returning, 90% of the DPS firball provides scorch is for.

No, I have no problem with molten armour.
I have so much no problem with molten armour that you shouldn't be using mage armour at all ever.
That's what your free, mana-returning, 90% of the DPS firball provides scorch is for.

smileyfacesmileyfacesmileyface

Can't understand what you are saying, should I spam scroch when i go oom? rofl

Can't understand what you are saying, should I spam scroch when i go oom? rofl

Mage Armor gives you nice mana regen sup

Yes.
You should.
In fact you should spam scorch BEFORE you go oom.

Scorch returns mana to you and casts quickly. This also means that using scorch gives you a lot of crits and therefore a lot of pyroblasts.
You will do more damage by weaving scorch into your rotation and keeping molten armour on than by swapping to mage armour.
Plus mage armour makes you lose your ability to cast scorch while moving.

The idea of fire is actually not to just spam fireball and then run out of mana, you need to cast both fireball and scorch.
Drop yourself to 35% with fireball, evocate, drop low again and then keep using scorch until you are either back at high mana or the boss is at 35% health. Once the boss is at 35% health it is your execute phase and you should prioritise fireball again.
When your spellpower or crit has been boosted by a trinket, execute phase or some kind of boss mechanic then use fireball. At other times when you are running low on mana use scorch.
A scorch rotation does 90% of the damage a fireball rotation does.

Mastery and haste are both very close in value, with mastery being slightly better. Frost's mastery increases damage done against frozen targets, so any spells with fingers of frost, and thus 100% crit, will benefit greatly. Haste will increase the rate at which you gain fingers of frost procs. Haste feeds mastery.

Great guide, mate! Really appreciated.

However, I just wanted to point out that the statement above is incorrect. Haste merely allows for more casts per time, but does NOT make mastery more powerful, because the percentage of FoF casts does not change. Had FoF been a 2-second buff or anything, then yes, it would have been true.

In fact, haste actually decreases the power of your mastery stat a bit by increasing the percentage of FoF procs used on Ice Lance relative to Deep Freeze, thus lowering the dps gain credited to mastery relative to other stats.

I hope you understand the math behind this. If not, I'll be happy to think of a good example to make it clear.

Sorry i don`t understand your claim.
Casts with Chill Effects (Frostbolt, Frostfire Orb) that are procing FoF are mainly effected by Haste. So more Casts with Chill Effects result in a gain of FoF Procs and therefore you have more Casts against Frozen Targets where Mastery comes into Play.

That is also the Reason why Simulationcraft has both Stats about even and when you rise up one Stat the Value of the other Stat is increasing.

Sorry i don`t understand your claim.
Casts with Chill Effects (Frostbolt, Frostfire Orb) that are procing FoF are mainly effected by Haste. So more Casts with Chill Effects result in a gain of FoF Procs and therefore you have more Casts against Frozen Targets where Mastery comes into Play.

That is also the Reason why Simulationcraft has both Stats about even and when you rise up one Stat the Value of the other Stat is increasing.

I'll give you a simplified example that might help visualize it for you.

Situation 1: no haste.

Player casts 10 Frostbolts and gains 2 FoF stacks.

Situation 2: 50% haste.

Player casts 15 Frostbolts and gains 3 FoF stacks.

In both situations the player gets approximately 1 FoF per 5 Frostbolts. While haste has given you 50% more FoF stacks, it has ALSO given you 50% more casts unaffected by Mastery. The value of Mastery has not increased. (I'll leave out the explanation of how it's even slightly so that Mastery loses a bit of value, because that'd only make this more confusing.)

I hope this makes it more clear.

EDIT: However, if you don't mean the relative, but the absolute effect of Mastery per point of Mastery rating, then yes, of course that goes up. But the same goes for Intellect (SP), Hit Rating and Crit rating. Haste = more casts = more effect from anything improving any cast. Nothing special about Mastery there. (That is also what you notice in Simulationcraft.)